This author would like to propose a third (and even a fourth) application of quantum teleportation, an application with implications at least as far-reaching as the two mentioned above: propulsion.

It should be possible to apply quantum teleportation to the problem of deep-space propulsion; not only is such an application possible, but, if implemented, would revolutionize space travel, even to the point of making interstellar travel (both manned and unmanned) truly feasible for the first time.

Interestingly, the initial steps of applying teleportation as a propulsion method can be taken using present-day technology.

In brief, the idea is to apply quantum entanglement to ion propulsion. An ion drive system is a form of rocket propulsion which uses a stream of charged particles, or ions, as a rocket exhaust.

Ion drives typically yield far lower thrust-to-weight ratios than traditional chemical rockets, but because of their much slower fuel burn rate they can gradually accelerate a spacecraft to speeds that no chemical rocket can reach.

Ion propulsion was used on NASA's highly successful Deep Space 1 probe, in the form of a solar-electric drive, that is, an ion drive in which solar panels provide the electrical power that is used to excite the fuel material to produce the ion stream that propels the craft. Interestingly, cesium is one of the materials that has been used as a fuel in ion rockets.